Fuel-oil burner



April 24, 1928.

c. A. KILGUS ET AL FUEL OIL BURNER v Filed Feb. 4, 1927 I I l I I. .R. III} xx M wa v m n w a 1% Zr M3 #0 f mm x w I m W r w I /F llllllll 1- u M J I: w M l 1, 2 m@ JL 0 m T W, q z 5 M 5: m 2 v 4 w y l fl ll\ll A? 0 udw Patented Apr. 24, 1928.

. NITEDJ STATES ENT mm CARL A. Rimes, cnascrnn A. BURTON, annenoaenllo.nnnemosim, om ssio MICHIGAN. v 1- v FUEL-OIL BURNER.

application and February 4 1927. serial m..1e5;782l 7 y "Our invention relates to 'inip'rovement-s in oil burners.

- An object is to provide a simple, inexpensive oil burner such as is particularlyadapted for use in house heating or the like wherein a mixture of fuel and steam is directed through a combustion space alongside a water boiler on to a target plate for com busti'on. This burner isso constructed and arranged as to functionwithout the-necessity of auxiliary blowers, atomizers, or other similar apparatus. The boiler. is so asso 'ciatedwith the burner as-to furnish steam tote mixed'with fuelin a mixing chaimbe: "to be directed therefrom upon the target plate. The fuel is conducted to the mixing chamber by a conduit leadii-igthrough the. water boilerin proximity "to the side there of'which is'adj'acent to the combustion chamher and the steam is led to the mixing; chamber so'as to mixtherein with the fuel cleli'vered thereto and to eject the mixture therefrom to be'directecl against the target "Plate; i

The boiler is preferably L-shap'ed, having an annular base, and'thetarg'et plate superiin'pose's the' o penihg throughythebase so as as provide an air opening leading f1 omfsuch opening through the base upwardly about the periphery of the target; The upright portion of the boiler project's above the tar'gtplate and at a point suflicientlyre mote therefrom overhangsthu same, and the mixing chamber is arranged in proximity to the upper overhanging end of the boiler superimposing the target plate at such a distance therefrom as to provide an intervening combustion space alongside the upright f portion of the'boiler. I

Other distinct advantages and meritorimis features of ourimprovcd fuel oil burner will more fully appear -1"rom the followin description, appended claims and accompanyingiclrawing, wherein: i

'Fig. 1 is a vertical sectional view through our improved burner. a v

Fig. 2 is a'plan of our-improved burner, and" a Fig. 3 is-av side elevation of the burner assembly.

In fuel oil burners it highly desirable I that the construction be simple and inexpensive. easily-installedand easily operated,

and that the constru'ct-ioii be of such a coaractor as to require the mini um amount ofoil su plied thereto.

conduit 42.

care and attention on-"tl'ie-ypart of the user. I Our imp-rovedbulner isinten'ded to. fulfill I these requirements. "It-is here shown as installed in a furnace of a. convcn't-ionalty m employed in house heating and iindicat d in dotted outline inlfigpfil vi We provide anL-sh'apetl boilcr I0,'h'avii'1 g an annular base 12 and an; upright portion 14. A dished or saucer shaped target plate 16 supei'im'poses the. opening 18 through the base of the boiler and aii openingS 20 are provided to permit" the air tofiowupward' ly around the margin of the target plate.

= The upright portion 14- ot' the boiler termi-' nates in adome-like structure which overhangsthe base as appears in Fig. 1.;

A mixing chamber 2:2 is disposed in proximity to the upper endthe boiler and communicates therewith through a conduit 24 to IGCQlVB' steam therefrom. ater 15 supplied to the boiler through a pipe 2-6 which leads from a tank QS'that' may be supplied from p a suitable source through a pipe A float Valve structure-32inaybe employed to main tain a "desired water level in the tank and likewise in the boiler, v

Fuel oil is supplied to the mixing chamber by a pipe 34 which leads through the boiler, as appears in Fig. 2, in proximity tothe inner surface thereof and discharges-into the mixing chamber below the steam inletto suchchamber. .Thisoil supply pipe leads from a suitable source not shown. There is preferably provided a thermostatically. edutrolled 'valve-36 oiany suitable construction to regulate the delivery of oil. The mixing chamber is provided withvan outlet 38 disposed to direct the fuel mixtureon to thetarget plate and such mixinguchamber is arranged at such a height above the target plate as to provide acombustion space above such plate: alongside the upright portion of the boiler. A bafiie40 may be employed to prevent-the steam entering the mixing chamber fromexerti'ng a back pressure upon the "To start theburner a suitable gas jet may be provided, gas being-supplied through a The annularba'se of the boiler is here shown as provided with a trough 46 sub'jacent the periphery of the target plate '16, which trough has a waste pipe 4 -In the operation of'this improved burner v the fuel mixture-is substantially volatilized at the time it leaves the mixing chamber and plate and in proximity to the upper end of said upright portion of the boiler, said mixing chamber provided with an outletto discharge a fuel mixture toward said target plate, a steam passageway leading from the boiler to the mixing chamber and a fuel passageway leading into the mixingcham ber.

2. A fuel oil burner having an L-shaped boiler the base of which is provided with an air opening, a target plate superimposing said opening, a mixing chamber provided with a discharge outlet to direct a fuel spray toward said target plate, said mixing chamber spaced above the target plate and in proximity to the upper end of the upright. portion of the boiler and communicating therewith whereby a combustion space is provided between the mixing chamber and the target plate and adjacent to the upright portion of the boiler, and a fuel conduit leading through said boiler into said mixing chamber.

3. A fuel oil burner having an L-shaped boiler provided with a ring shaped base, a saucer shaped target plate superimposing the opening through said base, the upright portion of said boiler projecting pwardly above the target plate and overhanging the same providing a combustion space alongside said upright portion above the target plate, a mixing chamber in proximity to the upper end of said upright portion of the boiler having adischarge outlet to direct a fuel jet on to said target plate, a steam passageway leading from the upper end of said upright portion of the boiler to the mixing chamber, and a fuel conduit leading through said boiler to said mixing chamber.

4.x fuel oil burner having an L-shaped boiler provided with an annular base and an upright portion terminating in a steam dome overhanging the base, a target plate superimposing'the opening through the base, a mixing chamber in proximity to the upper end of said boiler superimposing said target and having an outlet to direct a spray of fuel against said target, a fuel conduit leading through the upright portion of the boiler to said mixing chamber, a fuel passageway leading from the upper end of said boiler with the mixing chamber, a fuel'supe ply pipe leading through the upright por-v tion of the boiler in proximity to its inner wall and discharging into the mixing cham; ber below the steam inlet thereto, the top of said boiler shapedto provide an annular trough subjacent to the margin of said tar-, get. I

6. A fuel oil burner having a boilerprovided'with an annular base and an upright portion at one sidethereof, a target plate spaced above the openingthrough the base,

7 a mixing chamber spaced above the plate-and communicating with the uprightportionof the boiler toreceive steam therefrom, saidf mixing chamber provided with a nozzle to direct a fuel mixture toward the plate, a fuel pipe leading through the upright portion of the boiler to the mixing chamber,a source of water supply communicating with the boiler and means for maintaining a water level within the boiler substantially below the outlet therefrom leading to the mixing chamber providing asteam space within the boiler between the target plate and the mixing chamber and in proximity to the space therebetween.

7. A fuel oil burner having a boiler pro vided with an annular base havingan up right portion at one side, a target plate spaced above the opening through said annular base and overhanging the same, said base so shaped as to form an annular trough spaced below the periphery of the platefa mixing chamber spaced above the plateand communicating with the upright portion of the boiler to receive steam therefrom, a fuel conduit leading to said mixing chamber, said mixing chamber provided with a nozzle to' direct a fuel mixture toward the plate.

8. A fuel oil burner having a boilerprovided with an annular base having an upright portion atone side shaped to overhang the base, a target plate spaced above the opening through the base and overhanging the same, said base shaped so as to form a trough spaced below the periphery of the plate, a mixing chamber arranged at the upper and overhanging end of'the upright portion of the boilerspaced above the plate and provided with anozzle to direct a fuel mix-,

ture toward the plate, said mixing chamber connected with the upper end of the upright portion of the boiler to receive steam therefrom, a fuel pipe leadingthrough the upper portion of theboiler to the mixing chamber, ranged in proximity to the space between the mixing chamber and the plate to be heated by the combustion occurringrtherein.

9. In a fuel oil burner, an L-shaped boiler having a ring-shaped base and an upright portion overhanging the base, a target plate spaced above the opening through the base, a mixing chamber arranged in proximity to the upper overhanging end of the boiler and spaced directly above the target plate and said upright portion of the boiler ar- 'the mixing chamber, said mixing. chamber communicating with the upper end of the boiler to receive steam therefrom, and means for maintaining a water level within said respect thereto.

we sign this specificatboiler ator about the 'level of the plate with In witness whereof tion;

CARL A. KILGUS; CHESTER A. BURTON. I GEORGE o. BERGMOSER, 

